NRG

Hydrology

Velocity at West Farms

2004

The velocity distribution at West Farms was measured to pinpoint velocity barriers to fish passage as part of the anadromous fish reintroduction feasibility assessment. During periods of high flow, alewife eggs and juveniles can be washed downstream. Adult fish may be unable to withstand sustained or very strong currents.

Methods

Four transects were set up perpendicular to the current, ~4 feet apart. Velocity measurements were taken at 0.6 the water depth from the surface or the average of 0.2 and 0.8 water depth.